- 39 -
6. Electric Rotary Table /Specific Product Precautions
6.1 Design and selection
1. If the operating conditions involve load fluctuations, ascending/descending movements, or
changes in the frictional resistance, ensure that safety measures are in place to prevent injury
to the operator or damage to the equipment
Failure to provide such measures could accelerate the operating speed, which may be hazardous to
humans, machinery, and other equipment.
2. Power failure may result in a decrease in the pushing force; ensure that safety measures are in
place to prevent injury to the operator or damage to the equipment.
When the product is used for clamping, the clamping force could be decreased due to power failure,
potentially creating a hazardous situation in which the work piece is released.
Caution
1. If the operating speed is set too fast and the moment of inertia is too large, the product could be
damaged.
Set appropriate product operating conditions in accordance with the model selection procedure.
2. If more precise repeatability of the rotation angle is required, use the product with an external
stopper, with repeatability of ±0.01° (180° and 90° with adj. of ±2°) or by directly stop the
workpiece using an external object utilizing the pushing operation.
6.2 Mounting
1. Do not drop or hit the rotary actuator to avoid scratching and denting the mounting surfaces.
Even slight deformation can cause the deterioration of accuracy and operation failure.
2. When mounting the rotary actuator use screws with adequate length and tighten them with
adequate torque within the specified torque range.
Tightening the screws with a higher torque than recommended may cause malfunction, whilst the
tightening with a lower torque can cause the displacement of the mounting position or in extreme
conditions the actuator could become detached from its mounting position.
Mounting the workpiece to the rotary table
Mount the workpiece to the table using the screw length and tightening torque specified in the table
below. Using long screws which interfere with the body may cause operation failure.
Rotary actuator mounting (thro holes)
Part no.
Bolt
Screw
length
[mm]
Max.
tightening
torque [Nm]
LER*10
M4×0.7
6
1.4
LER*30
M5×0.8
8
3.0
LER*50
M6×1
10
5.0
Part no.
Bolt
Max.
tightening
torque [Nm]
LER*10
M5×0.8
3.0
LER*30
M6×1
5.0
LER*50
M8×1.25
12.0
!
Warning
!
Caution
Summary of Contents for LER Series
Page 3: ... 2 7 Troubleshooting 42 ...